Name: 7th KAGRA International Workshop
Start: 2020-12-18T13:00:00+08:00
End: 2020-12-20T20:00:00+08:00
Location: National Central University (Hybrid style Workshop)

7th KAGRA International Workshop

from Friday 18 December 2020 (13:00) to Sunday 20 December 2020 (20:00)

Monday 14 December 2020
Tuesday 15 December 2020
Wednesday 16 December 2020
Thursday 17 December 2020
Friday 18 December 2020
13:00 Plenary
Plenary
13:00 - 14:30
Contributions

13:00 Opening remark - Takaaki Kajita

13:05 Introduction of KAGRA, Status of KAGRA - Hisaaki Shinkai

13:45 General review on LIGO - Keita Kawabe (LHO)
14:30 Coffee Break
Coffee Break
14:30 - 15:00
15:00 Plenary
Plenary
15:00 - 17:00
Contributions

15:00 General review on Virgo - Ilaria Nardecchia

15:40 O3a catalogue - Stanislav Babak (CNRS)

16:20 Summary review on O3GK observation - Masayuki Nakano
17:00 Plenary
Plenary
17:00 - 17:05

17:30 Dinner
Dinner
17:30 - 19:30
Saturday 19 December 2020

09:00 Parallel (Theory)
Parallel (Theory)
09:00 - 10:40
Parallel (Experiment)
Parallel (Experiment)
09:00 - 10:40
Contributions

09:00 Status of KAGRA calibration toward O4 - Dan Chen (NAOJ)

09:30 Status of KAGRA PEM - Takaaki Yokozawa (ICRR)

10:00 Acoustic injection in the KAGRA site - Tatsuki Washimi (NAOJ)
Parallel(Analysis)
Parallel(Analysis)
09:00 - 10:40
Contributions

09:00 (Student) Development of Unsupervised-Learning Based Glitch Classification System - G.Ueshima

09:20 (Student) Modeling and searching for a stochastic gravitational-wave background from ultralight vector bosons - Leo Tsukada (The University of Tokyo, RESCEU)

09:40 (Student) A new way for stochastic gravitational wave background map making using maximum entropy method - Hsiung Chia Hsuan

10:00 (Student) Data analysis of GWs from core-collapse supernova with Hilbert-Huang Transform - Mei Takeda (Osaka City U.)

10:20 (Student) Use of Excess Power Method and Convolutional Neural Network in All-Sky Search for Continuous Gravitational Waves - Takahiro S. Yamamoto (Kyoto University)
10:40 Coffee Break
Coffee Break
10:40 - 10:45
10:45 Parallel (Expeirment)
Parallel (Expeirment)
10:45 - 11:05
Contributions

10:45 Current status of KAGRA noise budget paper - Kazuhiro Yamamoto (Faculty of Science, University of Toyama) Keiko Kokeyama (ICRR, U-Tokyo)
Parallel (Analysis)
Parallel (Analysis)
10:45 - 12:25
Contributions

10:45 (Student) Noise subtraction in offline analysis of KAGRA using independent component analysis - Jun'ya Kume (RESCEU, Univ. of Tokyo)

11:05 (Student) Development of lock-loss classification system in large-scale cryogenic gravitational waves telescope, KAGRA - YUTA FUJIKAWA (Niigata univ.)

11:25 (Student) Study of the frequency domain analysis method to estimate calibration errors - Honglin Lin (NCU)

11:45 (Student) Simulation studies of signal characteristics due to gravity field calibrator in gravitational wave detectors - Henry Wong (Academia Sinica) HsiangChieh Hsu (Department of Physics, National Cheng Kung University)

12:05 (Student) Improvement of calibration error method with higher order harmonics - Hsiang-Yu on behalf of the KAGRA collaboration Huang (NTNU / ASIoP)
Parallel (Theory)
Parallel (Theory)
10:45 - 12:25
Contributions

10:45 Stellar Mass Black Hole Formation and Multimessenger Signals from Three Dimensional Rotating Core-Collapse Supernova Simulations - Kuo-Chuan Pan (National Tsing Hua University)

11:35 Gravitational waves from supernova and protoneutron star asteroseismology - Hajime Sotani (RIKEN)
11:05 Parallel (Experiment)
Parallel (Experiment)
11:05 - 12:25
Contributions

11:05 (Student) Parametric Instability in KAGRA large scale cryogenic gravitational wave telescope - Kiichi Kaihotsu (University of Toyama)

11:25 (Student) Optical loss study using a cryogenic folded cavity - Satoshi Tanioka

11:45 (Student) Improvement of the laser intensity stabilization system for O4 in the gravitational wave telescope KAGRA - Yuki Kuromiya

12:05 (Student) Calibration of PCal Laser Power with O3GK - Koki Ito
12:25 Lunch
Lunch
12:25 - 13:30
13:30 Parallel (Experiment)
Parallel (Experiment)
13:30 - 15:30
Contributions

13:30 Axion and Vector dark matter search with gravitational wave detectors - Tomohiro Fujita (ICRR, Tokyo University)

14:00 (Student) Dark matter Axion search with riNg Cavity Experiment DANCE: Signal calibration and sensitivity evaluation - Yuka Oshima

14:10 (Student) Dark matter Axion search with riNg Cavity Experiment DANCE: Development of automated cavity locking system - Hiroki Fujimoto

14:20 Cosmic Relic Scattering at Gravitational Wave Detectors - Martin Spinrath (NTHU)

14:40 Directly probing ultra-low-mass scalar-field dark matter with gravitational-wave detectors - Yevgeny Stadnik

15:00 (Student) Possible Violations to Newton's Inverse-Square Law with Gravitational Waves Detector - Miftahul Maarif (Physics Department, National Central University, Taiwan)

15:20 Discussion - Yuta Michimura (The University of Tokyo)
Parallel(Theory)
Parallel(Theory)
13:30 - 15:30
Contributions

13:30 (Student)Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes - Shuai Liu

13:50 (Student) How does a dark compact object ringdown? - Elisa Maggio (Sapienza University of Rome)

14:10 (Student)Excitation of gravitational wave modes by motion: detecting the peculiar velocity of galaxies using extreme mass ratio inspirals - Alejandro Torres Orjuela (Peking University)

14:30 (Student)Equilibrium sequences of differentially rotating stars with post-merger-like rotational profiles - Panagiotis Iosif (Aristotle University of Thessaloniki)
Parallel (Analysis)
Parallel (Analysis)
13:30 - 15:30
Contributions

13:30 (Student) Polarization tests of GW170814 and GW170817 using waveforms consistent with alternative theories of gravity - Hiroki Takeda

13:50 (Student) On the jet structure of short Gamma-ray Bursts through X-ray light curve modeling - En-Tzu Lin

14:10 (Student) Generating Kilonova Light Curves Using Autoencoder to Investigate the Properties of a Compact Binary Merging System - Surojit Saha (Institute of Astronomy, National Tsing Hua University)

14:30 Testing the Propagation of GWs with CPT violation - Lijing Shao (Peking University)

15:00 OBSERVATIONAL EVIDENCE OF BLACK HOLE FORMATION BY GW-CALORIMETRY IN GW170817 - Maurice van putten (Sejong University)
15:30 Coffee Break
Coffee Break
15:30 - 15:50
15:50 Parallel(Analysis)
Parallel(Analysis)
15:50 - 17:10
Contributions

15:50 Gravitational-wave signal recognition of LIGO data by deep learning - He Wang (ITP-CAS)

16:10 Searching gravitational wave signal with autoregressive approach - David C. Y. Hui (Chungnam National University)

16:30 Probing GW friction with GW170817 and GW190521 - Simone Mastrogiovanni (Astroparticule et Cosmologie Laboratoire, Universite de paris)
Parallel (Expeirment)
Parallel (Expeirment)
15:50 - 17:10
Contributions

15:50 (Student) Measurement of the mechanical loss of reflective coatings for Cryogenic Gravitational wave telescope - Yukino Mori (Univ.Toyama)

16:10 (Student) Development of tilt adjustment mechanism for KAGRA cryogenic mirror suspension - Takumi Nishimoto (ICRR, U-Tokyo)

16:30 (Student) Low-Vibration Conductive Cooling of KAGRA Cryogenic Mirror Suspension - Tomohiro Yamada

16:50 (Student) Graphical user interface for Finesse simulation tool - Naoki Koyama (Niigata university)
Parallel (Theory)
Parallel (Theory)
15:50 - 17:10
Contributions

15:50 Black Holes Lessons from Multipole Ratios: A New Window into Black Holes - Daniel Mayerson (IPhT, CEA Saclay)

16:30 The problem on stationary states in self gravitational field - Stanislav Fisenko
17:10

17:10 - 17:15

17:10 - 17:15

17:10 - 17:15

17:30 Banquet
Banquet
17:30 - 19:30
Sunday 20 December 2020
09:00 Plenary
Plenary
09:00 - 10:30
Contributions

09:00 O3a astrophysical distributions - Daniel Wysocki (Rochester Institute of Technology)

09:40 Expected sensitivity of O4 - Yuta Michimura (The University of Tokyo)

10:05 O4 plan and commissioning - masayuki nakano (ICRR)
10:30 Coffee Break
Coffee Break
10:30 - 10:45
10:45 Plenary
Plenary
10:45 - 12:00
Contributions

10:45 Status of DAC - H Tagoshi

11:10 Anisotropy and polarization of gravitational wave background - K.W. Ng

11:35 r-process nucleosynthesis in neutron star mergers and kilonovae - Meng-Ru Wu
12:00 Lunch
Lunch
12:00 - 13:00
13:00 Plenary
Plenary
13:00 - 15:00
Contributions

13:00 Toward real-time quantum state tomography for the squeezed state with machine learning - Chien-Ming Wu (National Tsing Hua University)

13:20 Frequency dependent squeezing experiment at NAOJ: status and future - M. Leonardi

13:40 Frequency-Dependent Squeezing for Gravitational-Wave Detectors - Naoki Aritomi

14:00 Implementing the quantum parametric amplifiers in Advanced gravitational wave detectors - Y Ma

14:20 Broadband gravitational wave detectors using white light signal recycling - Michael Page
15:00 Coffee Break
Coffee Break
15:00 - 15:15
15:15 Plenary
Plenary
15:15 - 17:10
Contributions

15:15 KAGRA-OzGrav - Collaboration Opportunities for a kHz-Band Gravitational-Wave Detector - Johannes Eichholz

15:35 KAGRA sapphire mirror issues and current status - M. Leonardi

15:55 Gravitational Astronomy Sapphire Optics (OSAG) project - G. Cagnoli

16:10 Sapphire crystal growth at iLM - K. Lebbou

16:25 Coating R&D and sapphire developments at LMA - J. Degallaix
17:10 Plenary
Plenary
17:10 - 18:00
Contributions

17:10 Gravitational-wave standard siren cosmology - Hsin-Yu Chen

17:35 Astrophysics with joint analysis of multi-messenger observations - Ik Siong Heng
18:00 Plenary
Plenary
18:00 - 18:15
Contributions

18:00 Summary of KIW7 - Hisaaki Shinkai

18:10 Announcement of KIW8 in Korea - S. Lee
18:30 Dinner
Dinner
18:30 - 20:00

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